Global anomalies in the Standard Model(s) and beyond

  title={Global anomalies in the Standard Model(s) and beyond},
  author={Joe Davighi and B. M. Gripaios and Nakarin Lohitsiri},
  journal={Journal of High Energy Physics},
We analyse global anomalies and related constraints in the Standard Model (SM) and various Beyond the Standard Model (BSM) theories. We begin by considering four distinct, but equally valid, versions of the SM, in which the gauge group is taken to be G = G SM /Γ n , with G SM = SU(3) × SU(2) × U(1) and Γ n isomorphic to ℤ/ n where n ∈ {1, 2, 3, 6}. In addition to deriving constraints on the hypercharges of fields transforming in arbitrary representations of the SU(3) × SU(2) factor, we study… 
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